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Open Roads Forum  >  Travel Trailers  >  General Q&A

 > Still getting "Check trailer wiring" message 2014 Silverado

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wnjj

Cornelius, Oregon

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Posted: 04/01/19 08:53am Link  |  Quote  |  Print  |  Notify Moderator

plasticmaster wrote:

If it is a wiring issue on the trailer, is it limited to the ground wire and the wires going to the 4 individual brakes? I hope I wouldn't have to replace wires going to all the lights.


Yes, only the brake wires should be at issue,

ford truck guy

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Posted: 04/01/19 09:02am Link  |  Quote  |  Print  |  Notify Moderator

my buddy got a 2019 F-250, 6.7 for towing his TT.. He has not towed with it yet, but is getting the same message AND the trailer is NOT hooked up ... So far the dealer is stumped....


Me-Her-the kids
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Helmsey

Knoxville, TN

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Posted: 04/01/19 10:42am Link  |  Quote  |  Print  |  Notify Moderator

Have you checked\replaced the 2 fuses in the fuse block under the hood? I had intermittent warnings to check trailer brake system and after replacing fuses 1 and 2 I haven't seen it again.


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enblethen

Moses Lake, WA

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Posted: 04/01/19 11:15am Link  |  Quote  |  Print  |  Notify Moderator

Problem can be any where from the fuse block under the hood to the brakes in the trailer.


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plasticmaster

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Posted: 04/01/19 06:01pm Link  |  Quote  |  Print  |  Notify Moderator

Okay, I think I found the problem. Without the trailer attached to the ball hitch, I plugged the trailer cord into the truck. I was able to wiggle the wires and weird connectors just outside the trailer hub and recreated the problem. It must be a bad connection inside these weird connectors. Therefore, I'm going to replace all of these connectors. I'll try to post a pic of the weird connectors in a moment. What type of connection should I use?

plasticmaster

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Posted: 04/01/19 06:02pm Link  |  Quote  |  Print  |  Notify Moderator

I'm having trouble posting pic.

Tin-bender

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Posted: 04/01/19 06:31pm Link  |  Quote  |  Print  |  Notify Moderator

Had the same problem on my 2014 GMC, Flushed, filed, and cleaned the connectors inside the truck plug, problem solved.
Tinbender

plasticmaster

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Posted: 04/01/19 06:32pm Link  |  Quote  |  Print  |  Notify Moderator

[image]
Here's the pic.

enblethen

Moses Lake, WA

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Posted: 04/01/19 06:37pm Link  |  Quote  |  Print  |  Notify Moderator

Those are filled crimp scotch locks. They pierce the insulation. Do not make the best connection on some wire especially the wire coming from the magnets.

wnjj

Cornelius, Oregon

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Posted: 04/01/19 06:44pm Link  |  Quote  |  Print  |  Notify Moderator

enblethen wrote:

Those are filled crimp scotch locks. They pierce the insulation. Do not make the best connection on some wire especially the wire coming from the magnets.

A flatbed trailer I bought came with "normal" scotch locks. After connecting up one day to find I no brakes, I traced it to those worthless things. I removed them all in favor of twisting and soldering the wires together. My brake controller showed more LED's of braking strength then it ever had before with that trailer.

When I added brakes to my little cargo trailer, it came with the heavier gauge paired brake wire. Only then did I realize all of the LED's could light up, even with only single axle trailer. I never had more than half, even with the fixed flatbed wiring.

If you want brakes, run quality wire and use quality connections.

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